Malicious PDF — malware analysis report

Static analysis result for SHA-256 26be0043a2595900…

MALICIOUS

PDF

75.2 KB Created: 2021-03-21 08:43:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e8b9ddb284e1fa9c6929aceb1cf10c0 SHA-1: 7cec6f18b5904eb9c2a5feccbd77686913d1ca3b SHA-256: 26be0043a25959008e571b8680908a054d257c4d82e3361665a5382c1eacb72c
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a URL that is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is the primary indicator of compromise, suggesting the document is a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://botokaw.ru/123?utm_term=colicin+membrane+pore+formation
    • https://cdn.sqhk.co/wufevinek/iahfWyT/mario_kart_8_stars_after_race.pdf
    • http://kosonetibekub.medianewsonline.com/gojefumivogikomutetudaze.pdf
    • http://rowexusaje.mypressonline.com/lovipebu.pdf
    • http://gupirigugorixuf.sportsontheweb.net/9404408503.pdf
    • https://cdn.sqhk.co/pegipoveridi/ieQejc7/34492618469.pdf
    • http://jixazepo.mywebcommunity.org/38656946867.pdf
    • https://cdn.sqhk.co/tuxonewebuke/hJmNHNU/redeem_code_dunia_games_ml.pdf
    • https://cdn.sqhk.co/wujakegu/eijjchc/15071914430.pdf
    • https://cdn.sqhk.co/nuduniguwufo/ixgxVPy/amstaffs_dog_simulator_2019.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/datarofapakil/jumibovutuzibuzetibez.pdf
    • https://90ff81fc-98d9-4e53-96a3-aaa5c1c2042e.filesusr.com/ugd/bb5aff_10f493bfca7349008b003213e4209db6.pdf?index=true
    • http://fijetetesozaw.epizy.com/52059419658.pdf
    • https://s3.amazonaws.com/wukevirenesu/38543606807.pdf
    • http://zopegekole.rf.gd/torchlight_2_engineer_guide.pdf
    • http://kepinud.rf.gd/2727624915.pdf
    • https://s3.amazonaws.com/jivala/samsung_j2_6_frp_bypass_apk.pdf
    • https://s3.amazonaws.com/fewifuwu/dmv_learners_permit_test_study_guide.pdf
    • http://tedijafubivot.epizy.com/raj_bstc_admit_card_2019.pdf
    • http://bebidexaroz.rf.gd/how_do_i_put_my_plantronics_bt600_in_pairing_mode.pdf
    • https://s3.amazonaws.com/dovulavavo/maths_funny_questions_and_answers_in_malayalam.pdf
    • https://eb72eaa1-ef55-40a3-a653-f6d21bccf295.filesusr.com/ugd/54913d_d56a0a20f0fb4f10bf243c2eef1143b6.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaec.bin
d1961e4e362a853db29d85aab45f8a6efa504d2b8a5e6bb3047dc421ff0a1c78
pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEC 5028 bytes
font_01_sfnt_off0000fbea.bin
ea0bf357c55f5ad130eefc7d9306079a9acf2ad856b30874872fb305aa3c9744
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBEA 10380 bytes